Measures of Centre (Junior Cert Mathematics): Quizzes

📚Quizzes
Measures of Centre
Sign up to keep practising.Create a free account to play more quizzes and track your progress.

Practise the questions

12 questions from this quiz

Show

What does the mean represent?

Total amount shared equally

What is the formula for calculating the mean?

TotalCount\frac{\text{Total}}{\text{Count}}

Find the mean of: 3,6,9,12,153, 6, 9, 12, 15

99

What is the median?

The middle number in ordered data

Find the median of: 5,2,8,3,75, 2, 8, 3, 7

55

Find the median of: 4,9,6,11,8,104, 9, 6, 11, 8, 10

8.58.5

What is the mode?

Number appearing most often

Find the mode of: 3,7,5,7,9,7,43, 7, 5, 7, 9, 7, 4

77

How many modes exist in: 2,5,5,8,8,92, 5, 5, 8, 8, 9?

Two modes

What is a disadvantage of the mean?

Easily affected by outliers

When should you use the median?

To avoid outliers

When does the mode not exist?

If no number repeats

Join 100,000+ Junior Cert students studying Quizzes with us.

Select your subjects, and get access to A+ resources today.